| Acronym | Meaning |
| HRD | High Rate Dosimeter |
| E/W | Energy Over Weight |
| SCIS | Standard Cubic Inches Per Second |
| PCMMU | Pulse-Code Modulation Master Unit |
| STP | Space Technology Payload |
| GSSC | Ground Support Simulation Computer |
| SSM | SPacecraft Systems Monitor |
| TP | Test Port |
| HIPO | Hierarchical Input/Process Output |
| RHC | Rotational Hand Controller |